sciondude0

I have a manual 2006 Scion TC. There are two engine codes appearing: p0441 and p0455. Also, I noticed my RPM engine isn't how it normally sounds as I hear a change in the RPM. The engine sound gets a lot higher when I am in fourth or fifth gear so I have to change the gears sooner than I normally will. If I go more than 65 mph it gets really high so I don't push anymore than 60 mph. After driving it for so long, you quickly notice sounds that aren't normal. So I went to a shop to do a diagnostic, where I specifically asked them to do a smoke test because of it being a EVAP issue but I doubt they did it, and they said the issue was with the purge value and valve cover gasket. I took my car to my independent mechanic and the valve cover gasket was definitely leaking so I fixed that and I fixed the purge valve. However, the issue with the RPM still remains. I checked the hoses in the engine and from the naked eye they seem to be intact without any cracks but of course I may have missed some. What will cause my RPM to act this way?

18TTony

Clutch disc starting to slip.???????? Possibly.

sciondude0

I doubt it is clutch disc. I am pretty positive it is an evap leak issue but not sure where.

sciondude0

And now i smell gas in the back. Can it be characol canister?

62Fender

Not sure if the canister would throw the same codes you mentioned. The canister is only supposed to have vapor in it. If the purge valve is working correctly, you shouldn't smell fuel vapor. However, filling your fuel tank too much can send liquid fuel into the canister. This might be what you're smelling because the evap canister and purge valve are designed to trap and purge vapor, not liquid.

I drive a 2008 tC and have experienced P0411 and P0455 on several occasions. These codes (and P0456) were fixed with a new gas cap.

A new gas cap will probably clear your codes. I'm not sure what's going on with the the increased RPMs. Good luck with that one.